Portimao Sea Temperature Today: 30-Day Water Forecast
The sea temperature in Portimao today is +18°C. Over the next 30 days, the water temperature is expected to stay between +17°C and +21°C. The water is cool, so short swims are more realistic than long beach sessions. For a shorter view, open the 14-day sea temperature forecast.
Daily air temperature for the month
Day +28°C
Night +19°C
Daily sea water temperature for the month
Water +18°C
Tap a date to open detailed daily weather
| July | Day | Night | Sea t° | Wind | Precipitation | Humidity |
|---|---|---|---|---|---|---|
| 21Tue |  +28°C |  +19°C | +18°C | 6 m/s, NW | 0 mm | 68% |
| 22Wed |  +29°C |  +20°C | +18°C | 6 m/s, NW | 0 mm | 66% |
| 23Thu | +28°C | +19°C | +18°C | 6 m/s, NW | 0 mm | 67% |
| 24Fri | +26°C | +19°C | +17°C | 7 m/s, NW | 0 mm | 70% |
| 25Sat | +26°C | +19°C | +17°C | 9 m/s, NW | 0 mm | 70% |
| 26Sun | +27°C | +20°C | +17°C | 7–8 m/s, NNW | 0 mm | 66% |
| 27Mon | +28°C | +20°C | +18°C | 4 m/s, WNW | 0 mm | 60% |
| 28Tue | +29°C |  +21°C | +18°C | 3–4 m/s, SSE | 0 mm | 66% |
| 29Wed | +25°C | +18°C | +18°C | 5 m/s, WSW | 0 mm | 81% |
| Further values are multi-year averaged climate | ||||||
| 30Thu | +30°C | +19°C | +18°C | 4 m/s | 0 mm | 67% |
| 31Fri | +30°C | +19°C | +19°C | 4 m/s | 0 mm | 63% |
| 1Sat | +31°C | +19°C | +18°C | 5 m/s | 0 mm | 63% |
| 2Sun | +30°C | +18°C | +18°C | 5 m/s | 0 mm | 66% |
| 3Mon | +30°C | +18°C | +18°C | 5 m/s | 0 mm | 62% |
| 4Tue | +30°C | +18°C | +18°C | 4 m/s | 0 mm | 64% |
| 5Wed | +31°C | +19°C | +19°C | 4 m/s | 0 mm | 63% |
| 6Thu | +30°C | +19°C | +19°C | 4 m/s | 0 mm | 65% |
| 7Fri | +29°C | +18°C | +19°C | 4 m/s | 0 mm | 67% |
| 8Sat | +29°C | +18°C | +19°C | 4 m/s | 0 mm | 69% |
| 9Sun | +29°C | +18°C | +19°C | 4 m/s | 0 mm | 64% |
| 10Mon | +30°C | +18°C | +20°C | 4 m/s | 0 mm | 64% |
| 11Tue | +30°C | +19°C | +20°C | 4 m/s | 0 mm | 65% |
| 12Wed | +31°C | +20°C | +21°C | 4 m/s | 0 mm | 62% |
| 13Thu | +30°C | +20°C | +21°C | 4 m/s | 0 mm | 59% |
| 14Fri | +30°C | +19°C | +21°C | 4 m/s | 0 mm | 61% |
| 15Sat | +30°C | +18°C | +21°C | 4 m/s | 0 mm | 63% |
| 16Sun | +30°C | +19°C | +21°C | 5 m/s | 0 mm | 60% |
| 17Mon | +30°C | +19°C | +21°C | 5 m/s | 0 mm | 61% |
| 18Tue | +31°C | +18°C | +21°C | 5 m/s | 0 mm | 64% |
| 19Wed | +30°C | +18°C | +21°C | 5 m/s | 0 mm | 64% |
| 20Thu | +30°C | +19°C | +21°C | 4 m/s | 0 mm | 65% |
Sea water temperature by months
Water +20°C
Day and night air temperature
Day +30°C
Night +18°C
Weather minimums and maximums in Portimao for a month
- Warmest day: 1 August, +31°C
- Coldest night: 29 July, +18°C
- Days with precipitation in a month: 0
- Precipitation for a month: 0 mm
- Rainiest day in a month: 21 July
- Maximum precipitation amount: 21 July 0 mm
- Highest sea water temperature: 13 August, +21°C
- Lowest sea water temperature: 24 July, +17°C